Henry oehl



UNITED STATES PATENT OFFICE HENRY OEHL, OF CHESHIRE, CONNECTICUT, ASSIGNOR TO THE CHESHIRE XVATCH COMPANY, OF SAME PLACE.

WATCH-BARREL.

GPECIPICATION forming part of Letters Patent No. 391,183, dated October 16, 1888.

Application filed January 14, 1888. Serial No. 260,686. (No model.)

To all whom it may concern.- having the usual pivot-sockets and posts for Beitknown that LHENRY OEHL,ofCheshire, holding the time-train and the front plate, re-

in the county of New Haven and State of Conspectively. In the body of the plate a is necticut, have invented certain new and useful formed the spring-barrel socket a, in the hot- Improvements in Spring- Barrels for Timetom of which is located a ratchet-wheel, c, the 5 Pieces, of which the following is a full, clear, spring-pawl d, and pawl-spring d. Thespringand exact description, whereby any one skilled barrel 6 is a shallow cylindrical box having a in the art can make and use the same. bottom, 6', a flange, 8, around the edge, and

The object of my invention is to provide a a central recess, 6 that fits upon the stud a to device that shall, on the breaking of the mainthat rises from the bottom of the barrel-socket 6o spring of a watch or like time-piece, prevent in the form of my improvement shown in the V, thesltock or recoil from being thrown upon drawings. This stud serves as a pivot to centhe time-train of the timepiece; and to this ter not only the ratchet-wheel that is pivoted end my invention consists in making the on it, but also the spring-barrel. The bottom I 5 spring-barrel independent of the main wheel of the spring-barrel is provided with the proby the means described; also, in the windingjecting lugs e, that fit into the corresponding ratchet combined with theindependent spring sockets c in the ratchet-wheel. It is obvious barrel, these parts having engaging lugs and that the arrangement of these interlocking sockets. It alsoconsistsin the peculiar springparts of spring-barrel and ratchet-wheel may 20 barrel struck up of metal and with integral be reversed-that is, that the projections may lugs in combination with the main wheel, the be formed on the ratchet-wheel and the socket spring-barrel removably connected tothe main in the barrel. The main wheel f is formed wheel, the spring, and the ratchet; and it furseparatefrom thespring-barrel,and hasashaft, ther consists in details of the several parts of f, upon which it is secured and by which it 25 the device, and in their combination, as more is pivotally supported between the back plate particularlyhereinafter described,andpointed and'the bridge 9, as shown in Fig. 3 of the out in the claims. drawings.

Referring to the drawings, Figure 1 isa top On the hub f of the main wheel there is a or plan view of the back plate of a watchprojecting pin, f, that serves as the point 0 movement with the time-train removed, and upon which the inner end of the mainspring showing the spring-barrel socket with the his hooked, while the other end of the mainratchet-wheel and spring-pawl in place. Fig. spring is hooked upon the stud e on the inner 2 is a View in central vertical section through side of the wheel or flange of the spring-barrel. the plate and through the bridge, main wheel, The several parts to which my improvement 5 spring-barrel, and ratchet, the latter parts directly relates are assembled in the relation being arranged each over the other in the shown in Figs. 2 and 3 of the drawings, and order in which they are to be assembled. when thus arranged they not only serve to Fig. 3 is a detail view in central vertical secprevent in a measure the breaking of the maintion of the back plate and the several parts spring, but it effectually prevents the shock 0 above described when assembled. Fig. 4 is a of a recoil, in case a mainspring breaks, from 0 detail plan view of the spring-barrel. Fig. 5 being thrown upon the time-train. When aris a detail plan view of the ratchet-wheel. ranged as shown, thespring-barrel is held in Fig. 6 is a detail view in horizontal section place loosely and yet with sufficient firmness through the spring-barrel and the shaft of the to keep the spring-barrel and ratchet-wheel in 5 main wheel. Fig. 7 is adetail plan view of a engagement, and yet allow freedom for the part of the back of the pillar-plate or back main wheel to turn when required. The plate of a watch, showing a yoke and rotary ratchet-wheel may, however, be integral with winding-stem. or secured to the spring-barrel without de- In the accompanying drawings, the letter a parting from the main feature of my invention. 5o denotes the back plate of a watch-movement, In the particular construction of pillar-plate 10o The spring is wound by turning the wind-.

ing-stem 9 that drives the ratchet-wheel c by means of the intermediate intermeshing gearwheels, 9, h, and h, the relative positions of which are shown in Figs. 1 and '7 of the drawings.

I claim as my invention 1. In combination with the plates of a watch or like time-piece, a spring-barrel mounted thereon, the ratchet-wheel and its springpawl, the main wheel of the time-train independent of the spring-barrel and of the ratchet-wheel, and the mainspring located within the springbarrel and connected to the main shaft and spring-barrel, respectively, all substantially as described.

2. In combination with the plates of a watch. or like time-piece, the ratchet-wheel c, the spring-barrel e, removably connected to the ratchet-wheel and located between the ratchetwheel and the main wheel, the main wheel independent of the spring-barrel, and the mainspring located within the spring-barrel and attached to the main shaft and spring-barrel, respectively, all substantially as described.

3. In combination with the back plate, a, having the spring-barrcl socket a and post a", the ratchet-wheel c, pivoted on said post, the spring-pawl d, the spring-barrel 6, located in the socket a and removably attached to the ratchet-wheel, the mainspring located in the springbarrel, and the main wheel independent of the spring-barrel and. forming the cover thereof, all substantially as described.

HENRY OEHL.

\Vitnesses:

A. B. JENKINS, G. G. HADDOW. 

